Connector

ABSTRACT

A connector for a component fitting assembly of an air conditioning system includes a substantially planar plate having a recessed portion and a slot portion. The recessed portion and the slot portion are formed in the plate to define an opening for receiving a conduit therein. A method for coupling the conduit to the connector includes the step of urging at least the portion of the conduit through the slot portion and into the recessed portion of the plate, whereby the at least the portion of the conduit is deformed to correspond with a configuration of the opening to militate against disengagement between the plate and the at least the portion of the conduit disposed in the opening of the plate.

FIELD OF THE INVENTION

The present invention relates to a connector. More particularly, theinvention is directed to a connector for a component fitting assembly,

BACKGROUND OF THE INVENTION

Presently known automotive air conditioning systems generally includevarious components such as a compressor, a condenser, an evaporator, athermostatic expansion valve, for example, and a plurality of conduitsor lines that connect the various components. A suitable refrigerant iscontained within the system. Installation of the various components ofthe air conditioning system is typically independent of one another withthe conduit connected to the components after they are installed ormounted within an engine compartment of a vehicle. While differentmethods and apparatuses for securing the conduit to the variouscomponents are known, one method utilizes an o-ring encircling an end ofconduit that provides a seal when the end of the conduit is secured in aport on the component.

To secure the end of the conduit to the component, a connection plateengages and traps the conduit in a conduit passage extending through theconnection plate. The connection plate further includes a secondpassageway offset from and substantially parallel to the conduitpassage. Once the conduit is inserted into a port on the component, afastener extending through the second passageway secures the connectionplate to the component whereby the end of the conduit is connected tothe component.

Space limitations within the engine compartment, together with packagingconsiderations oftentimes complicates attachment of the conduit to thevarious components due to a location of the components within the enginecompartment. Additionally, mass production of the vehicles limits a timeto connect the conduit to the various components. Thus, it is beneficialto securely locate both conduits relative to each other for ease ofassembly to the various components in the vehicle. Current componentfitting assemblies are configured such that the conduits are eitherfreely located which hinders the assembly operation or secured by abrazing process which is cost prohibitive.

Accordingly, it would be desirable to produce a component fittingassembly, which facilities an efficient and cost effective connection ofconduits to a component of an automotive air conditioning system.

SUMMARY OF THE INVENTION

In concordance and agreement with the present invention, a componentfitting assembly, which facilities an efficient and cost effectiveconnection of conduits to a component of an automotive air conditioningsystem, has surprisingly been discovered.

In one embodiment, a connector comprises: a substantially planar plateincluding a recessed portion and a slot portion formed therein to definean opening for receiving a conduit therein, the plate configured tomilitate against disengagement between the plate and the conduitdisposed in the opening formed in the plate.

In another embodiment, a component fitting assembly comprises: a firstconduit for receiving a fluid therein; a second conduit for receivingthe fluid therein; and a connector including a substantially planarplate including a first opening, and a recessed portion and a slotportion formed therein to define a second opening, the first conduitreceived in the first opening and the second conduit received in thesecond opening, wherein a shoulder formed in the plate militates againstdisengagement between the plate and the second conduit disposed in thesecond opening formed in the plate.

The present invention also relates to a method for coupling a conduit toa connector.

The method comprises the steps of: providing a substantially planarplate including a recessed portion and a slot portion formed therein,wherein the recessed portion and the slot portion define an opening forreceiving at least a portion of the conduit therein; and urging the atleast the portion of the conduit through the slot portion and into therecessed portion of the plate, whereby the at least the portion of theconduit is deformed to correspond with a configuration of the openingwhich militates against disengagement between the plate and the at leastthe portion of the conduit disposed in the opening of the plate.

BRIEF DESCRIPTION OF THE DRAWINGS

The above, as well as other advantages of the present invention, willbecome readily apparent to those skilled in the art from the followingdetailed description of the preferred embodiment when considered in thelight of the accompanying drawings in which:

FIG. 1 is an exploded perspective view of a component fitting assemblyincluding a connector according to an embodiment of the invention;

FIG. 2 is a rear elevational view of a connector according to anotherembodiment of the invention;

FIG. 3 is a rear elevational view of a connector according to anotherembodiment of the invention;

FIGS. 4A-4D are rear elevational views of the connector illustrated inFIG. 1 showing a method of coupling a conduit to the connector; and

FIG. 5 is a cross-sectional side elevational view of the connectorillustrated in FIG. 1 taken along line 5-5 of FIG. 1.

DETAILED DESCRIPTION OF THE INVENTION

The following detailed description and appended drawings describe andillustrate an exemplary embodiment of the invention. The description anddrawings serve to enable one skilled in the art to make and use theinvention, and are not intended to limit the scope of the invention inany manner.

FIG. 1 shows a component fitting assembly 10 according to the presentinvention. The component fitting assembly 10 includes a suction line oroutlet conduit 12 and a high-pressure line or inlet conduit 14, aconnector 16, a coupling mechanism 18 (i.e. a threaded nut), and acomponent 20 of an air conditioning (A/C) system (not shown) such as anthermostatic expansion valve (TXV) having ports 17, 19 formed therein,for example. The outlet conduit 12 and the inlet conduit 14 areconnected to the component 20 and correspondingly provide a return lineand a supply line for a pressurized fluid such as a refrigerant used inthe A/C system, for example. In certain embodiments, the outlet conduit12 has a relatively large outer diameter and serves as a low pressureside refrigerant conduit of the A/C system. The inlet conduit 14 has arelatively small outer diameter in relation to the outlet conduit 12 andserves as a high pressure side refrigerant conduit of the A/C system.Radially outwardly extending annular flanges 22, 24 are formed about ofthe conduits 12, 14, respectively. The flanges 22, 24 each provide aplanar surface for receiving a sealing element 25 thereon. As shown, theflanges 22, 24 are axially offset from respective ends 26, 28 of theconduits 12, 14 to permit at least a portion of the ends 26, 28 of theconduits 12, 14 to be received in the ports 17, 19 of the component 20of the A/C system.

As illustrated, the connector 16 includes a substantially planar plate29 provided with a central aperture 30 and a pair of spaced apartopenings 32, 34 formed therein. The central aperture 30 and the openings32, 34 are formed through a thickness of the plate 29 in a directionsubstantially perpendicular to a substantially planar first surface 36of the plate 29. The central aperture 30 is configured to receive afastening member 37 of the component 20 therein for coupling theconnector 16 thereto. The openings 32, 34 are configured to receive theoutlet conduit 12 and the inlet conduit 14, respectively. The opening 32is formed adjacent a first end of the plate 29 and the opening 34 isformed adjacent an opposing second end of the plate 29. In certainembodiments, the central aperture 30 and the opening 32 each have agenerally circular shape. However, various other configurations of thecentral aperture 30 and the opening 32 can be employed if desired. It isunderstood that the opening 32 can have any suitable inner diameter tocooperate with the outlet conduit 12. The opening 34 shown has agenerally mushroom-shape. Various configurations of the opening 34 canbe employed as desired such as a generally triangular shape as shown inFIG. 2, a generally square shape as shown in FIG. 3, a generallyrectangular shape, or a generally irregular shape, for example.

As more clearly illustrated in FIGS. 4A-4D, the plate 29 includes arecessed portion 38 and a slot portion 40 formed therein to define theopening 34. In certain embodiments, a raised region 42 is formed on thefirst surface 36 of the plate 29 around the opening 34 to facilitatesubstantially flush contact of the flanges 22, 24 with the component 20.The recessed portion 38 has a generally semi-circular shape and a radius(r1) corresponding to a radius (r2) of the inlet conduit 14 afterinsertion into the opening 34. A center (C) of the semi-circularrecessed portion 38 is laterally offset from a center (D) of the centralaperture 30 and a center (E) of the opening 32 towards the slot portion40. A lateral offset (LO) facilitates proper alignment of the conduits12, 14 after the insertion of the inlet conduit 14 into the opening 34,and thereby ensures proper assembly of the conduits 12, 14 with thecomponent 20 of the A/C system. In certain embodiments, the lateraloffset (LO) is calculated by subtracting a width (w1) of the slotportion 40 in a direction substantially parallel to a longitudinal axisA of the plate 29 and directly adjacent the recessed portion 38 from theouter diameter of the inlet conduit 14, and then dividing by two (2). Inother words, the lateral offset=0.5* [the outer diameter of the inletconduit 14—the width (w1) of the slot portion 40 in the directionsubstantially parallel to the longitudinal axis A of the plate 29 anddirectly adjacent the recessed portion 38]. In a non-limiting example,the lateral offset (LO) is in a range of about 0.25 mm to about 1.0 mm.In yet another non-limiting example, the lateral offset (LO) is about0.5 mm. It is understood, however, that the lateral offset (LO) can beany suitable amount as desired to ensure proper assembly of the conduits12, 14 with the component 20 of the A/C system.

As shown, the recessed portion 38 terminates at a shoulder 46 forming aninside corner 48. An angle α between a plane substantially perpendicularto the first surface 36 of the plate 29 which extends along thelongitudinal axis A and the inside corner 48 is in a range of about 100degrees to about 130 degrees. The recessed portion 38 is configured todeform a portion of the inlet conduit 14 into an elliptical shape whenthe inlet conduit 14 is inserted therein. It is understood that theangle α can be any suitable angle to produce a desired shape andconfiguration of the inlet conduit 14. For example, a relatively largerangle α decreases the elliptical shape of the portion of the inletconduit 14 resulting in more circular shape of the portion of the inletconduit 14, and a relatively smaller angle α increases the ellipticalshape of the portion of the inlet conduit 14 resulting in a moreelongated elliptical shape of the portion of the inlet conduit 14. Incertain embodiments, the angle α depends upon an outer diameter of theinlet conduit 14 and a desired center position of the inlet conduit 14after insertion into the opening 34.

As illustrated, the slot portion 40 extends laterally outwardly from theshoulder 46 to an outer peripheral edge 44 of the plate 29. The width(w1) of the slot portion 40 in the direction substantially parallel tothe longitudinal axis A of the plate 29 increases from the recessedportion 38 to the outer peripheral edge 44, thereby providing a lead-into guide the inlet conduit 14 into the slot portion 40. In certainembodiments, an angle β of the lead-in for the inlet conduit 14 toproperly engage the slot portion 40 is in a range of about 7 degrees toabout 25 degrees. It is understood that the angle β can be any suitableangle to guide the inlet conduit 14 into the opening 34. In otherembodiments, the width (w1) of the slot portion 40 varies in a range ofabout 70% to about 95% of the outer diameter of the inlet conduit 14. Asa non-limiting example, the width (w1) of the slot portion 40 in thedirection substantially parallel to the longitudinal axis A of the plate29 and directly adjacent the recessed portion 38 is 1 mm less than theouter diameter of the inlet conduit 14.

An outside corner 50 is formed between the shoulder 46 and the slotportion 40. An edge of the outside corner 50 is configured to protrudeor “bite” into the inlet conduit 14 to militate against a lateralmovement of the inlet conduit 14 and a disengagement of the inletconduit 14 from the connector 16, as well as militates against arotational movement of the inlet conduit 14 within the recessed portion38. As shown in FIG. 5, the plate 29 about the opening 34 is formed witha first draft angle γ and a second draft angle δ. In certainembodiments, a size of the opening 34 decreases in the directionsubstantially perpendicular to the first surface 36 from the firstsurface 36 to a parting line (F) and increases in the directionsubstantially perpendicular to the first surface 36 from the partingline (F) to a substantially planar second surface 60. Accordingly, thesize of the opening 34 is minimized at the parting line (F). The firstdraft angle γ of the plate 29 militates against an axial movement of theinlet conduit 14 in a direction substantially perpendicular to and awayfrom the first surface 36 of the plate 29, and therefore, militatesagainst a disengagement of the inlet conduit 14 from the opening 34.Similarly, the second draft angle δ of the plate 29 militates against anaxial movement of the inlet conduit 14 in a direction substantiallyperpendicular to and away from the second surface 60, and therefore,also militates against a disengagement of the inlet conduit 14 from theopening 34. It is understood that the first draft angle γ and the seconddraft angle δ can be either distinct or substantially identical. In anon-limiting example, each the first draft angle γ and the second draftangle δ is about 3 degrees. As illustrated in FIG. 5, the parting line(F) formed between the first draft angle γ and the second draft angle δis offset in respect of a central plane substantially parallel to thefirst surface 36 of the plate 29 extending along the longitudinal axis Atowards the first surface 36.

In certain embodiments shown in FIGS. 1-4D, the outer peripheral edge 44of the plate 29 may also include a substantially planar portion 52formed adjacent the second end of the plate 29 opposite the slot portion40. The substantially planar portion 52 provides a stable surface fortooling or fixture to contact during the insertion of the conduit 14into the opening 34.

A method of coupling the conduit 12 with the connector 16, and moreparticularly, affixing the conduit 12 within the opening 32 can beaccomplished by any means as desired such as by a brazing process, awelding process, a crimping process, an adhesive, and the like, forexample. it is also understood that the conduit 12 can be freelydisposed in the opening 32 if desired.

After the conduit 12 is coupled to the connector 16, the conduit 14 isthen coupled thereto. It is understood, however, that the conduit 14 canbe coupled to the connector 16 prior to the coupling of the conduit 12to the connector 16 if desired. A method of coupling the conduit 14 withthe connector 16 is shown in FIGS. 4A-4D. In particular, the conduit 14is pressed into the opening 34 using a press die or mechanism 54. Aportion of the conduit 14 adjacent the flange 24 is aligned with theopening 34, as shown in FIG. 4A, and guided by the lead-in into the slotportion 40 of the opening 34. As the portion of the conduit 14 is urgedthrough the slot portion 40, the portion of the conduit 14 is deformed.In certain embodiments, the portion of the conduit 14 is deformed into asubstantially elliptical shape as shown in FIG. 4B. The mechanism 54continues to press the portion of the conduit 14 through the slotportion 40 and into the recessed portion 38. As the portion of theconduit 14 is pressed into the recessed portion 38, the portion of theconduit 14 is further deformed. In certain embodiments, the portion ofthe conduit 14 is deformed into a substantially mushroom shape as shownin FIG. 4C. As a result, the portion of the conduit 14 is caused to abutthe shoulder 46 and the outside corner 50 protrudes into the inletconduit 14. Once the portion of the conduit 14 is pressed into therecessed portion 38, the mechanism 54 is withdrawn from the opening 34as shown in FIG. 4D.

To assemble the component fitting assembly 10, the respective ends 26,28 of the outlet conduit 12 and inlet conduit 14 are received in therespective ports 17, 19 such that the ends 26, 28 of the conduits 12, 14engage the component 20. The sealing elements 25 located on the ends 26,28 of the conduits 12, 14 create an annular seal between the flanges 22,24 of the conduits 12, 14 and the component 20. As known in the art, theconnector 16 and threaded fastener 37 along with the coupling mechanism18 provide a compressive force to hold the conduits 12, 14 in positionin the component 20.

From the foregoing description, one ordinarily skilled in the art caneasily ascertain the essential characteristics of this invention and,without departing from the spirit and scope thereof, make variouschanges and modifications to the invention to adapt it to various usagesand conditions.

What is claimed is:
 1. A connector comprising: a substantially planarplate including a recessed portion and a slot portion formed therein todefine an opening for receiving a conduit therein, the plate configuredto militate against disengagement between the plate and the conduitdisposed in the opening formed in the plate.
 2. The connector accordingto claim 1, wherein the plate is configured to militate against at leastone of a rotational movement, a lateral movement, and an axial movementof the conduit disposed in the opening formed in the plate.
 3. Theconnector according to claim 1, wherein the opening formed in the platehas a generally mushroom shape.
 4. The connector according to claim 1,wherein the recessed portion terminates at a shoulder, the shoulderconfigured to militate against at least one of a rotational movement, alateral movement, and an axial movement of the conduit disposed in theopening formed in the plate.
 5. The connector according to claim 1,wherein the recessed portion has a generally semi-circular shape.
 6. Theconnector according to claim 5, wherein the recessed portion has aradius corresponding to a radius of the conduit after insertion into theopening formed in the plate.
 7. The connector according to claim 5,wherein a center of the recessed portion is laterally offset towards theslot portion of the plate in respect of a center of another openingformed in the plate.
 8. The connector according to claim 1, wherein therecessed portion has one of a generally triangular shape, a generallysquare shape, a generally rectangular shape, and a generally irregularshape.
 9. The connector according to claim 1, wherein the slot portionextends laterally outwardly from the recessed portion to an outerperipheral edge of the plate.
 10. The connector according to claim 1,wherein a width of the slot portion in a direction substantiallyparallel to a longitudinal axis of the plate increases from the recessedportion to an outer peripheral edge.
 11. The connector according toclaim 1, wherein the plate about the opening is formed with a firstdraft angle and a second draft angle to militate against an axialmovement of the conduit disposed in the opening formed in the plate. 12.The connector according to claim 1, wherein the plate includes an outerperipheral edge having a substantially planar portion formed oppositethe slot portion to provide a stable surface for tooling or fixture tocontact during an urging of the conduit into the opening formed in theplate.
 13. A component fitting assembly comprising: a first conduit forreceiving a fluid therein; a second conduit for receiving the fluidtherein; and a connector including a substantially planar plateincluding a first opening, and a recessed portion and a slot portionformed therein to define a second opening, the first conduit received inthe first opening and the second conduit received in the second opening,wherein a shoulder formed in the plate militates against disengagementbetween the plate and the second conduit disposed in the second openingformed in the plate.
 14. The component fitting assembly according toclaim 13, wherein the recessed portion has one of a generallysemi-circular shape, a generally triangular shape, a generally squareshape, a generally rectangular shape, and a generally irregular shape.15. The component fitting assembly according to claim 13, wherein theslot portion extends laterally outwardly from the recessed portion to anouter peripheral edge of the plate.
 16. A method for coupling a conduitto a connector, comprising the steps of: providing a connector includinga substantially planar plate having a recessed portion and a slotportion formed therein, wherein the recessed portion and the slotportion define an opening for receiving at least a portion of theconduit therein; and urging the at least the portion of the conduitthrough the slot portion and into the recessed portion of the plate,whereby the at least the portion of the conduit is deformed tocorrespond with a configuration of the opening which militates againstdisengagement between the plate and the at least the portion of theconduit disposed in the opening of the plate.
 17. The method accordingto claim 16, wherein the plate is configured to militate against atleast one of a rotational movement, a lateral movement, and an axialmovement of the at least the portion of the conduit disposed in theopening formed in the plate.
 18. method according to claim 16, whereinthe opening formed in the plate has a generally mushroom shape,
 19. Themethod according to claim 16, wherein a press die urges the at least theportion of the conduit into the opening formed in the plate.
 20. Themethod according to claim 16, wherein the at least the portion of theconduit is urged into the opening formed in the plate subsequent acoupling of another conduit with the plate.